#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
	char foo[5];
	char c;

	if(fgets(foo, 5, stdin) != NULL)
	{
		if(strchr(foo, '\n') == NULL)
		{
			do c = fgetc(stdin);
			while(c != EOF && c != '\n');
		}
		else foo[strlen(foo) - 1] = '\0';
	}

	puts(foo);

	return 0;
}